<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>TestAPI</title>
</head>
<body>
    <input type="text" id="message">
    <button  id="submit">提交</button>
    <script>
       let websocket = new WebSocket("ws://127.0.0.1:8080/test");
        websocket.onopen=function(){
            console.log("连接建立");  
        }
        websocket.onmessage = function(e){
            console.log("收到消息： "+e.data);
        }
        websocket.onerror = function(){
            console.log("连接异常");
        }
        websocket.onclose = function(){
            console.log("连接关闭");
        }
        let input =document.querySelector('#message');
        let button =document.querySelector('#submit');
        button.onclick =function(){
             console.log("发送消息： "+input.value);
             websocket.send(input.value);
        }
    </script>
</body>
</html>